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C is the radioactivity of the intake of 210 Po [mBq/cartridge/cigarettes] calculated as the differences between the radioactivity of unheated and heated cartridges and unburned and burned cigarettes
2 - 6 Most relapses occur within the first week or within the first three months after quitting, especially during situations you used to associate with smoking, like stress, or when drinking alcohol
Secondhand marijuana smoke has many of the same toxic and cancer-causing chemicals as tobacco smoke, some of them in higher amounts